The pill out of my system.

Stopped taking the pill at the start of the year and my periods seem to come back and regulate pretty quickly, but I still haven't been able to conceive. 
This month my period cramps were unbearable. They were worse than being on the pill the last few months but nothing like this month. 
Could this be an indicator that the effects of the pill are no longer in my system and I could have a better chance at conceiving this month or is that not how it works?
Getting impatient now. :(